APA
Powell S., Royal Institution of Chartered Surveyors & Association for Geographic Information. (1990). Land surveyors division handbook 1990/91. London: Royal Institution of Chartered Surveyors.
Chicago
Powell Sandra, Royal Institution of Chartered Surveyors and Association for Geographic Information. 1990. Land surveyors division handbook 1990/91. London: Royal Institution of Chartered Surveyors.
Harvard
Powell S., Royal Institution of Chartered Surveyors and Association for Geographic Information. (1990). Land surveyors division handbook 1990/91. London: Royal Institution of Chartered Surveyors.
MLA
Powell Sandra, Royal Institution of Chartered Surveyors and Association for Geographic Information. Land surveyors division handbook 1990/91. London: Royal Institution of Chartered Surveyors. 1990.
